CT 3124; [Female], October 28,
1962, MCT 3176; [Male], October 28, 1962, MCT 3177.

This babbler was common at the Cocoa Research Station but uncommon
elsewhere. It seemed to prefer primary forest and was only rarely
seen in the cocoa. My series shows that this species was common at
Quoin Hill and _M. cinereum_ was rare, while the opposite obtained
12 miles north of Kalabakan. For the moment this cannot be
explained. Possibly these two species are competitive and tend
toward mutual exclusion. Since the birds were mostly netted, it is
assumed that I obtained a random sample. My observations at Quoin
Hill seem to bear out the specimen record.

The specimens in my series of _M. m. magnum_ are more nearly black
on the crown than those labelled _M. m. saba_ in the U. S. National
Museum (from the Segah River), but there was much variation in the
amount of black on the crown in all series examined. I consider _M.
m. saba_ to be synonymous with _M. m. magnum_.

_=Malacopteron cinereum cinereum=_ Eyton: Lesser Red-headed
Babbler.--_Specimens_, 29: Cocoa Research Station: [Male], December 2,
1962, MCT 3428; [Female], June 11, 1963, ADG 124; [Male], July 9, 1963,
ADG 178. 12 mi. N Kalabakan: [Male], October 13, 1962, MCT 3025;
[Female], October 13, 1962, MCT 3030; [Male], October 13, 1962, MCT
3032; [Female], October 14, 1962, MCT 3042; [Male], October 14, 1962,
MCT 3043; [Female], October 16, 1962, MCT 3059; [Male], October 21,
1962, MCT 3119; [Male], October 22, 1962, MCT 3128; [Female], October
24, 1962, MCT 3136; [Male], October 28, 1962, MCT 3178; sex?, October
31, 1962, MCT 3188; [Female], November 7, 1962, MCT 3219; [Female],
November 7, 1962, MCT 3220; [Male], November 12, 1962, MCT 3263;
[Female], November 12, 1962, MCT 3264. Kalabakan: [Male], November 15,
1962, MCT 3282; [Male], November 15, 1962, MCT 3284; [Female], November
15, 1962, MCT 3285. Ulu Balung Cocoa Estate: [Male], July 13, 1963, ADG
197. Oil Palm Research Station: sex?, August 16, 1963, ADG 245;
[Female], August 28, 1963, ADG 272. Pintasan Agriculture Station:
[Male], October 17, 1963, ADG 318; [Male], October 18, 1963, ADG 319;
[Male], October 18, 1963, ADG 320; [Female], October 18, 1963, ADG 321;
[Female], October 18, 1963, ADG 322. See remarks under _M. magnum_.

_=Malacopteron magnirostre cinereocapillum=_ (Salvadori): Brown-headed
Babbler.--_Specimens_, 20: Cocoa Research Statio